The Research of Enhancing the Dependability of Cloud Services Using Self-Healing Mechanism

More and more applications have adopted cloud services to implement their critical business, so each cloud service is expected to be dependable. However, there are many threats affecting the dependability of cloud services, and it is very difficult to find out the real cause that leads to the failures of cloud services. In order to enhance the dependability of the cloud services, we propose a self-healing mechanism using AOP technology in the paper. The main process includes: utilizing the log monitoring cutting concern to monitor the running cloud service, acquiring user information, cloud service information and error reporting, then submitting them to the diagnosis components for error classification and archiving, selecting appropriate dependable strategy based on analyzing result from strategies warehouse, generating the corresponding pluggable self-healing concern group for cloud services. The experimental results show that when the instantaneous failure occurs, the method proposed can effectively decrease the failure.